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Finding the Fourth Proportional to 79,077.38, 118,622.15 and 22,918.25

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Solution

The fourth proportional to 79,077.38, 118,622.15 and 22,918.25 is: 34,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.38 : 118,622.15 = 22,918.25 : x
  2. Step 2: Convert to fraction form
    79,077.38/118,622.15 = 22,918.25/x
  3. Step 3: Cross multiply
    79,077.38x = 118,622.15 × 22,918.25
  4. Step 4: Simplify right side
    79,077.38x = 2,718,611,381.54
  5. Step 5: Solve for x
    x = 2,718,611,381.54/79,077.38
  6. Step 6: Final answer
    x = 34,379.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.